Lewistown Weather Forecast

    • 27
    • 41

    Increasing Clouds

    • 29
    • 41

    Mostly Cloudy

    • 5
    • 40

    Chance Snow

    • -9
    • 14

    Snow Likely

    • -9
    • 2

    Snow Likely

    • -8
    • 4

    Snow Likely

Today 30 Jan Fergus County below 4500ft

Sunny. Highs 45 to 50. West Winds 5 to 15 Mph.

Tonight 30 Jan Fergus County below 4500ft

Partly cloudy in the evening then becoming mostly cloudy. Lows 25 to 30. Southwest Winds 5 to 15 Mph.

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Lewistown Temperature Statistics

January Temperature

Lewistown, Lewistown Municipal Airport (1.2 miles)

  • Lowest 20 January, 2025

    -19.2 °F

  • Average January

    18.6 °F

  • Highest 10 January, 2025

    44.7 °F

Climate (2020–Present)

Lewistown, Lewistown Municipal Airport (1.2 miles)

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  • Average Low 2020–2025

    32.4 °F

  • Average 2020–2025

    44.5 °F

  • Average High 2020–2025

    56.3 °F
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